High temperature superconductivity in metallic region near Mott transition

Tian De Cao

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arXiv · 0906.2130

High temperature superconductivity in metallic region near Mott transition

Tian De Cao

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Abstract

The spin-singlet superconductivity without phonons is examined in consideration of correlations on an extended Hubbard model. It is shown that the superconductivity requires not only the total correlation should be strong enough but also the density of state around Fermi energy should be large enough, which shows that the high temperature superconductivity could only be found in the metallic region near the Mott metal insulator transition (MIT). Other properties of superconductors are also discussed on these conclusions.

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Tian De Cao. 2009-09-11. High temperature superconductivity in metallic region near Mott transition. https://arxiv.org/abs/0906.2130

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